Jigsaw with pneumatic dust blower
US4870755A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 6, 1988 |
| Grant date | Oct 3, 1989 |
| Priority date | — |
| Expiry date | Sep 6, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T83/263
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A power tool has a housing, a blade support reciprocal in the housing, a blade carried on the support for joint reciprocation therewith and projecting from the housing at a work area, and a drive in the housing for reciprocating the support and blade. A bulb generally fixedly mounted in the housing adjacent the support, elastically compressible from a large volume to a small volume, and having an outlet is operatively engageable with an actuator formation between the blade support and the bulb so as to compress the bulb each time the support reciprocates and thereby emit a gust of air from the bulb outlet. A nozzle or conduit is mounted on the outlet and open at the work area for directing the gusts of air at the area and thereby blowing chips and dust created by the blade from the area with each reciprocation of the blade.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.